- Otto I Rantzau von Leisnig
- William "Earl Of Arundel" D' Aubigny
Birth - about 1140 - Of, Buckenham, Norfolk, England - William de Ferrieres
Birth - about 1140 - Of, Tutbury, Staffordshire, England - Amaury (Almaricus) de Montfort
- Hamon Massey
Death - about 1140 - , Dunham Massey, Cheshire, England - Herluf NN
- Sune Skjalmsen Hvide
Death - about 1140 - Sorø, Sjælland, Denmark - Rabbi Jom Tov ben Yehuda Falaise
Death - 1140 - Paris, lie-de France, France - Jitzhak ben Jehuda Treves
- William Venables
Birth - about 1140 - Of Kinderton, Cheshire, England - Roger, Earl Of Buchan
Birth - about 1140 - Of, BUCHAN, Aberdeenshire, Scotland - Reginald Devereux
- Walter de Clifford
Birth - about 1140 - Clifford Castle, , Herts, England - Walter Bolebec
Birth - about 1140 - , Blancland, North Hampshire, England - Manolis Laskaris
Birth - about 1140 - Of Nicaea, Bursa, Turkey - Otto I (V) Bavaria
- William Belward Egerton
Birth - about 1140 - Of Mallpas, Chesh, Eng - Geoffrey de Neville
Birth - about 1140 - Of, Horncastle, Lincolnshire, England - Cynan Ap Owain
Birth - about 1140 - Of, , Caernarvonshire, Wales - Vulgrin Ii Taillefer
- Floris Iii "Crusader", Count Of Holland
Birth - about 1141 - Of 'S-Gravenhage, Zuid Holland, Netherlands - Enguerrand de Coucy
Birth - about 1141 - Boves, Somme, France - Robert de Ferrers (Ferrier
Death - 1141 - , Merevale, Warwickshire, England - Adam Hocton
Birth - about 1141 - Of Lancashire, England - Malcheline de Ferrers
Birth - about 1141 - Of, , Derbyshire, England - Hugh de Beauchamp
- William Harcourt
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